What are good ways to make my Python code run first time? [closed]

Answer 1

I set up Python to automatically start the debugger when there's an uncaught exception, using this trick. That way, you can easily examine the state of the program without too much logging code. (Plus, to send me a Growl notification.)

Oh, and this way you can just create a break point in the code by adding

if answer == 42:
    1/0